Mirapex acus (R.J. Shuttleworth, 1852) Mexico, Veracruz
Spiraxis adamsianus L. Pfeiffer, 1852 Jamaica
Proameria albersi (L. Pfeiffer, 1854) Mexico, Sinaloa
Poiretia algira (J.G. Bruguière, 1792) Algeria
Proameria alticola (H.A. Pilsbry, 1903) Mexico, Nuevo León
Euglandina altispira W.K. Weyrauch, 1960
Rectaxis alvaradoi (C. Goodrich& H. Van Der Schalie, 1937) Guatemala
Shuttleworthia ambigua (L. Pfeiffer, 1856)
Singleya anomala (G.F. Angas, 1879) Costa Rica44 mm
Euglandina apolinari H.A. Pilsbry, 1935 Colombia
Shuttleworthia arborea H.B. Baker, 1941 Mexico
Versutaxis arctatus (H.B. Baker, 1940) Mexico, Puebla
Pseudosubulina arcuata (H.B. Baker, 1939) Mexico, Veracruz
Guillarmodia arthritica (F.G. Thompson, 1995) Mexico, Acapulco
Laeviglandina aurantiaca (G.F. Angas, 1879) Costa Rica
Euglandina aurata (P.M.A. Morelet, 1849) Guatemala36,1 mm
Euglandina bailyi M. Smith, 1950 Mexico, Acapulco
Euglandina balesi (H.A. Pilsbry, 1938) Mexico, Sinaloa
Streptostyla bartschi (W.H. Dall, 1908) Mexico, Veracruz
Pseudosubulina berendti (L. Pfeiffer, 1862) Mexico, Veracruz
Pittieria bicolor E.C. Von Martens, 1901 Costa Rica
Streptostyla biconica L. Pfeiffer, 1856 Mexico, Chiapas
Euglandina binneyana (L. Pfeiffer, 1845) Guatemala39,7 mm
Streptostyla binneyana J.C.H. Crosse& P.H. Fischer, 1869 Guatemala
Spiraxis blandi (J.C.H. Crosse, 1873) Venezuela, Los Roques3,5 mm
Volutaxis blandiana (H.A. Pilsbry, 1909) Mexico, Veracruz
Euglandina bogotensis (E.M. Da Costa, 1793) Colombia40,3 mm
Pseudosubulina borealis (H.A. Pilsbry, 1903) Mexico, Puebla
Streptostylella botteriana (J.C.H. Crosse& P.H. Fischer, 1869) Mexico, Veracruz
Streptostyla boyeriana J.C.H. Crosse& P.H. Fischer, 1869 Mexico, Veracruz
Guillarmodia brachystyla (F.G. Thompson, 1995) Mexico, Acapulco
Spiraxis brevis (C.B. Adams, 1850)
Laeviglandina broctontomlini (H.A. Pilsbry, 1926) Costa Rica
Salasiella browni (H.A. Pilsbry, 1916) Panama, Canal Zone
Volutaxis cacahuamilpensis (Herrera, 1891) Mexico, Acapulco